She had been wearing pink shoes and was planning on meeting up with her husband, Keith Papini, later in the evening after her jog. But when he returned home, Papini was nowhere to be found.

“I would say my personal reaction is that it’s twofold,” Suzanne Papini, Keith’s sister, told the Star. “One, is that it’s good to have some sort of clue. The other portion is that it really points to she’s been taken. I mean, she wouldn’t just drop her phone if she was running away. So, at least it’s giving us some kind of information, but it’s pretty — we’re sick. This is a pretty sickening situation.”

At least three women — in three different states — have been murdered while jogging since July 30, according to reports.

Karina Vetrano, a 30-year-old Queens resident, was raped and strangled during a run in Spring Creek Park in Howard Beach on Aug. 2.

Surveillance footage showed her listening to music through her earbuds as she calmly ran along a nearby road around 5:46 p.m. — just minutes before cops believe she was killed.

Vetrano’s body was found roughly five hours later, face-down in a marshy area, by her father.

While elements of DNA were recovered at the scene, police have still not named a suspect. Investigators have since cleared family members and at least one ex-boyfriend.

In Massachusetts, five days after Vetrano’s death, 27-year-old Vanessa Marcotte, also a New York City native, was sexually assaulted and killed after going for a mid-afternoon jog. Her naked, severely burned body was later found in the woods, ABC reported.

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Ally Brueger, a 31-year-old from Michigan, reportedly was shot to death July 30 while running on a rural road in Oakland County, about 30 miles northwest of Detroit.

According to MLive.com, police believe the shooting was not random and that Brueger likely knew her killer. She had been left to die by the suspect on the porch of a neighbor.

Authorities have previously denied claims that a serial killer could be on the loose, saying there had been nothing so far to indicate that this was the case.

“It’s terrible. I’m just in a state of being emotionless so that I can do what needs to be done and take care of my brother,” Suzanne Papini said.

Before the “bubbly” mom went out for her run, relatives said, she sent a text to Keith asking him if he’d be home for lunch. He couldn’t, though, and instead told her he’d meet up with her afterward.

“He returned to the home later in the evening, around 5, and no one was here,” Koester said. “He called the authorities immediately.”

Using the Find My iPhone app, Keith was able to track his wife’s phone to an area less than a mile away from their home — but cops said there was no sign of her.

Search crews spent Wednesday night and Thursday canvassing the area where Papini’s phone was found, to no avail.

“It depends on the search … and what we find and the evidence and we’ll have to expand it out potentially if something else has not developed,” sheriff’s Lt. Anthony Bertain said.

Police have yet to identify anyone suspected of being involved in Papini’s disappearance, but a search of the local sex offender registry shows four men reported living within a mile of where her phone was discovered.